Shipping

Packing Slips

New Feature

Print Size Preferences

Control the exact paper size used for your shipping labels and packing slips—independently, per shipment type. Route content to your thermal and desktop printers automatically.

Overview

Quick Ship lets you independently configure two things for each shipment type (Letter, Flat, Parcel):

Shipping Label Sizes

Choose the paper size Quick Ship uses when generating shipping labels

4×6 Thermal — standard thermal label for Letters and Flats
9×4 Envelope (PWE) — prints directly onto a plain white envelope or half-sheet paper
Parcels (USPS Ground Advantage) are always 4×6 and cannot be changed

Packing Slip Sizes

Choose the paper size for the packing slip printed alongside each order

4×6 Thermal — compact slip sized to match a thermal label
8×11 Standard — full-page slip for desktop / inkjet printers
Can be set differently for Letters, Flats, and Parcels

Configuring Your Label Sizes

Label size preferences are found in Shipping Settings → Shipping Label Sizes.

How to set your label sizes:

Go to Shipping Settings
Find the Shipping Label Sizes card
Choose your preferred size for Letter and Flat shipments
Click Save

Shipping Label Sizes

Choose the shipping label size for Letter and Flats. Parcels are always 4x6.

Letter Size

Flat Size

Parcel Size

4x6 Thermal(Cannot be changed)

The Shipping Label Sizes card in Shipping Settings

Configuring Your Packing Slip Sizes

Packing slip sizes are found in Shipping Settings → Packing Slip Sizes. You can set a different size for each shipment type.

How to set your packing slip sizes:

Go to Shipping Settings
Find the Packing Slip Sizes card
Choose your preferred size for Letter, Flat, and Parcel shipments
Click Save

Packing Slip Sizes

Choose your desired packing slip size for each label type. If the size is different than your shipping label size you will get separate files so you can send them to different printers.

Letter Size

Flat Size

Parcel Size

The Packing Slip Sizes card in Shipping Settings

How Downloads Are Organized

When you click Download Combined, Quick Ship automatically routes each order's packing slip and shipping label into the correct output file based on your preferences.

thermal-4x6.pdf

All 4×6 packing slips and 4×6 shipping labels, interleaved per order. Goes straight to your thermal printer.

standard-8x11.pdf

All 8×11 packing slips, in order. Send this to your desktop or inkjet printer.

envelope-9x4.pdf

All 9×4 envelope labels, in order. Load your envelopes or half-sheet paper and print.

When you get a .zip file

If your preferences produce more than one output file (e.g. some orders go to thermal and others to standard paper), Quick Ship automatically bundles them into a single fulfillment-and-labels.zip archive. Extract it and send each PDF to the appropriate printer.

Things to Watch Out For

Mixed sizes always produce a .zip

If any order in a batch has a different packing slip size or label size than the others, the download will be a .zip instead of a single PDF. This is by design — it lets you send each file to the right printer — but it means an extra extraction step. If you want a single PDF every time, set all sizes to 4×6 Thermal.

9×4 labels require correct printer scaling

When printing 9×4 envelope labels on a desktop printer, make sure your print dialog is set to 100% / Actual Size. Scaling to fit the page will distort barcodes and make them unreadable by USPS scanners.

Packing slip size and label size are independent

You can use a 4×6 packing slip with a 9×4 label, or an 8×11 packing slip with a 4×6 label. When they differ for the same order, the packing slip goes into one file and the label goes into another — they are not combined onto the same page.

Parcel labels and slips are always 4×6

Parcel shipping labels are locked to 4×6 to meet USPS carrier requirements. You can still choose 8×11 for Parcel packing slips if you prefer, which will route the slip to your standard-8x11.pdf.

Order sorting is preserved across all files

All output files (thermal, standard, envelope) maintain the same order sequence as your picking session. If you sorted by order number, each PDF will also be sorted that way, so it's easy to match slips to labels even when they're in separate files.

Common Setups

All Thermal (Default)

One PDF, one printer

Set everything to 4×6 Thermal. You'll always get a single combined PDF with slips and labels interleaved. No zip file, no sorting between printers.

Best for: most sellers

Thermal Labels + 8×11 Slips

Labels go thermal, slips go laser

Set label sizes to 4×6, packing slip sizes to 8×11. You'll get a zip with thermal-4x6.pdf (labels only) and standard-8x11.pdf (slips only).

Best for: sellers with a thermal + laser/inkjet setup

PWE Envelopes for Letters

Print directly onto envelopes

Set the Letter label size to 9×4 Envelope, leave everything else at 4×6. Letters get their own envelope-9x4.pdf; Flats and Parcels continue going to thermal-4x6.pdf.

Best for: sellers shipping lots of PWE singles

Full Desktop Printing

No thermal printer needed

Set all label sizes to 9×4 and all packing slip sizes to 8×11. Both files come in a zip. Print the envelope PDF on half-sheets and the slip PDF on full-sheet paper.

Best for: low-volume sellers without a thermal printer

What's Next?

Label Sizes

Learn more about the available shipping label sizes and printer compatibility.

Insurance Options

Add insurance to your Letters and Flats for extra protection.